Quarterly report pursuant to Section 13 or 15(d)

Equity Incentive Plan (Tables)

v3.8.0.1
Equity Incentive Plan (Tables)
9 Months Ended
Sep. 30, 2017
Share Based Compensation Option And Incentive Plan [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
The following is a summary of stock option activity for the nine months ended September 30, 2017 and 2016:  
 
 
 
 
 
 
 
Weighted-Average
 
 
 
Number of
 
Weighted- Average
 
Contractual Life
 
 
 
Options
 
Exercise Price
 
(In Years)
 
Outstanding at December 31, 2016
 
 
1,509,711
 
$
2.85
 
 
5.04
 
Granted
 
 
482,950
 
 
1.44
 
 
9.60
 
Exercised
 
 
(61,078)
 
 
0.67
 
 
 
 
Expired
 
 
(73,283)
 
 
2.19
 
 
 
 
Outstanding at September 30, 2017
 
 
1,858,300
 
$
2.62
 
 
5.61
 
Exercisable at September 30, 2017
 
 
1,188,317
 
$
2.68
 
 
4.56
 
Vested and Expected to Vest at September 30, 2017
 
 
1,188,317
 
$
2.68
 
 
4.56
 
 
 
 
 
 
 
 
 
 
 
 
Outstanding at December 31, 2015
 
 
1,277,367
 
$
2.75
 
 
4.94
 
Granted
 
 
355,071
 
 
2.81
 
 
9.50
 
Exercised
 
 
(86,765)
 
 
0.65
 
 
 
 
Forfeited
 
 
(12,362)
 
 
3.93
 
 
 
 
Outstanding at September 30, 2016
 
 
1,533,311
 
$
2.91
 
 
6.44
 
Exercisable at September 30, 2016
 
 
907,445
 
$
2.84
 
 
4.09
 
Vested and Expected to Vest at September 30, 2016
 
 
907,445
 
$
2.84
 
 
4.09
 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
For the nine months ended September 30, 2017 and 2016, the fair value of each option grant has been estimated on the date of grant using the Black-Scholes Option Pricing Model with the following weighted-average assumptions:
 
 
 
2017
 
2016
 
Risk-Free Interest Rate
 
1.82%
 
1.82%
 
Expected Life
 
7.28 years
 
7.00 years
 
Expected Volatility
 
171%
 
65%
 
Expected Dividend Yield
 
0%
 
0%
 
Employee and Non Employee Service Share Based Compensation Allocation off Recognized Period Costs [Table Text Block]
The total stock-based compensation expense for employees and non-employees is included in the accompanying Condensed Consolidated Statements of Operations and as follows:  
 
 
 
Three Months Ended
 
Nine Months Ended
 
 
 
September 30,
 
September 30,
 
 
 
2017
 
2016
 
2017
 
2016
 
Research and Development
 
$
57,544
 
$
17,092
 
$
165,538
 
$
35,692
 
General and Administrative
 
 
131,148
 
 
135,973
 
 
535,295
 
 
354,777
 
 
 
$
188,692
 
$
153,065
 
$
700,833
 
$
390,469